Hibernate, demora na persistencia! [RESOLVIDO]

<property name="hibernate.hbm2ddl.auto" value="update"/>

public class HibernateSupport {

    private EntityManagerFactory emf;
    private ThreadLocal<EntityManager> managerThread;
    private ThreadLocal<EntityTransaction> transactionThread;

    public HibernateSupport() {
        emf = Persistence.createEntityManagerFactory("ArmazemPU");
        managerThread = new ThreadLocal<EntityManager>();
        transactionThread = new ThreadLocal<EntityTransaction>();
    }

    protected EntityManager getEntityManager() {
        if (managerThread.get() == null) {
            EntityManager em = emf.createEntityManager();
            managerThread.set(em);
        }
        return managerThread.get();
    }

    protected EntityTransaction getEntityTransaction() {
        if (transactionThread.get() == null) {
            EntityTransaction transaction = getEntityManager().getTransaction();
            transactionThread.set(transaction);
        }
        return transactionThread.get();
    }

    protected void stopOperation() {
        getEntityManager().close();
        transactionThread.remove();
        managerThread.remove();
    }
}

public class AbstractManager<T> extends HibernateSupport {

    public AbstractManager() {
        super();
    }

    protected void persist(T instance) {
        getEntityTransaction().begin();
        getEntityManager().persist(instance);
        getEntityTransaction().commit();
    }

    protected T merge(T instance) throws Exception {
        getEntityTransaction().begin();
        instance = getEntityManager().merge(instance);
        getEntityTransaction().commit();
        return instance;
    }

    protected void remove(T instance) {
        getEntityTransaction().begin();
        getEntityManager().remove(instance);
        getEntityTransaction().commit();
    }

}

public class MyEntity {
	
    public static String DEFAULT_UNIT_NAME = "namePersistence";
    
    private static EntityManagerFactory emf = null;
    
    public static EntityManager getEntityManager() {
        if( emf == null ){
        	System.out.println("Criando o EntityManagerFactory");
        	init();
        	System.out.println("EntityManagerFactory Criado");
        }
        return emf.createEntityManager();
    }   
    
    private static void init() {
       emf = Persistence.createEntityManagerFactory(DEFAULT_UNIT_NAME);
    }
    
    public static EntityManager getEntityManager(String unitName) {
        if( emf == null ) init(unitName);        
        return emf.createEntityManager();
    }    
    
    private static void init(String unitName) {
        emf = Persistence.createEntityManagerFactory(unitName);
    }
}